Means for pouring metal into core-molds.



F. LOUDELL. MEANS FOR POURING METAL INTO CORE MOLDS.

APPLICATION FILED 0003.10, 1913.

Lilfi o Patented 14, 19M

3 S -SHEET 1.

F. E. GUDELL. MEANS FOR POURING METAL INTO GORE Moms.

APPLIGATION FILED 0OT.10, 1913.

Patented July 14,1914

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3 SHEETS-SHEET 2.

APPLICATION FILED 0OI'.10, 1913.

' Patented July 14, 1914 3 SHEETS-SHBET outrun FRANK E. CUDELL, OF CLEVELAND, (EH10.

MEANS FOR PQURING METAL INTI) COBE-MOLDS.

Specification of Letters Patent.

Patented July it, i914 Application filed October 10, 1913. Serial No. 794,407.

To all whom it may concern Be it known that I, FRANK I). CUnnnL, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and useful Improvement in Means for Pouring Metal into Core-Molds, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated core directlyv opposite. This causes the stream to divide and flow laterally in both directions around the core. During this time too the How hecames disrupted into what might be termed a spray composed of variously sized globules which become chilled particles and preclude homogeneous castings. A disrupted and spattcring stream will permit more dress to form. These deleterious circumstances attending the method now in vogue are especially pronounced when the upper part of the moldform is elongated in an upward direction and is otherwise dimensioned to comparatively thin stock.

The drawing exemplifies a .mold-form having a long upright extension in the shape of a. tube; It will be readily appre ciated that chilled particles such as have been suggested will frequently occasion rious defects over the thin areas of such a tube casting.

My invention consists of an arrangement for pouring molten metal into core-molds so that the metal stream on leaving the gate falls directly down a vertical passage which may be proportioned as desired with respect tothe size of the gate. More specifically a guide or partition is provided on each side oi as well as above thc gate so that the flow of metal is contincd to a single stream in which the oxidation must be considerably lessened. In this manner also, the advantage is secured of avoiding sprays and drops which when occasioned become chilled and lodge between the mold and the core to form defects in the casting when the rising metal eventually envelops them.

The inventive conception is exemplified in means which are hereinafter explained and variously combined in the claims, while the annexed drawings and particular description thereof together set forth in detail several modes of accomplishing my invention, the disclosed means however being but three of various mechanical forms in which the principle of my invention may be applied.

Adverting to the drawings :Figure I is a section of the mold embodying the preferred form of my invention. Fig. II is a section on line II-II of Fig. I looking downwardly. Fig. III is a view similar to Fig. II showing one member turned into a different position. Fig. IV is a view similar to Fig. I with the lower portion of the mold broken away and representing a modification of my invention. Fig. V is a section on line V-V of Fig. IV. Fig. VI a section on line VI-VI of Fig. IV likewise looking in the direction of the arrows: Fig. VII is a view similar to Fig. I with the lower portion cut away showing a second modification. Fig. VIII is a section on line VIII-VIII of Fig. VII. Fig. IX is a. view similar to Fig. VIII of a third modification. Fig. X is a broken vertical section of still another modification. Fig. XI is a broken horizontal section of Fig. X. Fig. XII is a perspective of one detail of the preferred form of my invention. Fig. XIII is a perspective of one detail oi the modification disclosed by Figs. IV, V and VI. .Fig. XIV is a perspective view of another detail associated with Figs. IV. V and VI. Fig. XV is a perspective view of a detail in conjunction with the construction of Figs. VII. and VIII. Fig. XVI is a perspective view of a detail illustrated in Fig. IX. Fig. XVII is a perspective view of a detail which is seen in section in Figs. X and XI.

A mold 1 includes a p imary mold-form 2 and its core 3. The secondary mold-form 4 consists of an elongated upward extension of circular cross section and this portion -t ol' the cntirc mold-form is a mainly cylimlrical cow 5 axially alincd thcrcwith. The core tion 8"-are located.

5 intersects the upper surface of the core 3 and is rotatable thereupon as seen in Fig.

I. A gate 6 finds indirect entrance as will now be explained from above the top 7 of the secondary mold-form.

That portion of the core 5 which is above the bottom of the gate is of increased d1- ameter, and but for a vertically extending cutout portion 8 opposite the gate would preclude the communication between the gate mold form opening and mold form both of which are below. This cut-out portion 8 is proportioned to the gate opening and while usually directly opposite the gate may, when rotated be variously proportioned with respect to the gate opening, and so correspondingly reduce the latter as desired. I should mention that in using the term mold-form opening I mean part of the space to be occupied by the finished casting or an upward continuation of such space between the gate and opposed core. In this manner the metal in flowing from the gate is compelled to fall directly downward in a full stream and obviously by reason of this less dross is permitted to form. Furthermore no appreciable spray can occur and absolutely no drops allowed to chill and become suspended between the core and the mold.

The modified form seen in Figs. IV, V and VI shows the, application of my invention to molds in which the gate has direct communication with the mold-form below the top of the latter. In such case a rod 9 is seen to be made slidable in an upright openin 10 extending downwardly from the top of the mold between the core '5 and a secondary mold-form. The lower end of this rod has two depending extensions 11 spaced from each other a distance corresponding to the width ofthe gate opening, and themselves of a width corresponding with the thickness of the, mold-form at that point. In length these extensions or lateral portions 11 should preferably exceed the height of the gate opening. It will be perceived that by bringing the extensions 11 into the plane of the gate they are caused to serve the function of lateral partitions and therefore to similarly establish the essential elements of my invention. During the employment of this form the extensions 11 should be withdrawn from the mold-form just prior to the time when the metal has risen to their lowermost extremities.

Figs. VII and VIII relate to a further modification whereby the metal may be simultaneously supplied to the mold-form on opposite sides. A second cut-out portion 12 is provided on the other side of the core 5* from which the gate 6 and cut-out por- The two upright channels thus formed are connected by a semicircular horizontal groove 13 around which the metal flows in order to reach the channel formed in conjunction with the mold 1 b the cut-out portion 12. \Vhen advisable to ha re the metal enter the mold on both sides, as in this form, the cut out portions usually have about half the cross sectional area so that the two together may exactly account for the flow from the gate. 4 may be occasionally preferable otherwise and such variation may be similarly accomplished by the rotation of the core 5".

Fig. IX is a modification so nearly similar to the idea suggested by Figs. VII and VIII that but one view is necessary. The single ditlerence consists in fashioning the passage 14. which .connects the spaces 8" and 15in the mold rather than in the core 5.

Figs. X and XI show a modification very similar to that seen in Figs. IV, V and VI, the only variation being that the two lateral partitions here each designated as 16 are attached to the core 5 instead of suspended from a slidable rod. In utilizing a mold so constructed, that portion of the casting which would occupy the portion of the mold-form above the lower edges of the partitions 16 would have to be removed.

My invention being thus described with suilicient thoroughness, what I desire to secure by Letters Patent and therefore claim specifically, is z- I 1. In means for pouring metal into core molds, the combination of a mold provided with a mold-form, a core positioned in the However this latter, said mold furthermore provided with I a gate communicating with said mold-form laterally of said core, and means for restricting such communication on opposite sides of the gate for the useful purpose specified.

2. In means for pouring metal. into core molds, the combination with a mold having a mold-form and a gate above the moldform, said mold being furthermore formed with a duct connecting said gate and moldform, and means for constricting said moldform on each side of said duct outlet for the useful purpose specified.

3. In means for pouring metal into coremolds the combination with a. mold having an upwardly extending mold-form provided with a core having a guide above said moldform, said guide provided with a recess forming in conjunction with said mold a duct in communication with said mold-form,

' said mold being provided with a gate in communication with said duct.

4. In means for pouring metal into coremolds, the combination with a mold having an upwardly extending mold-form provided with a. core having a guide snugly interposed between said mold and the upper end of said mold-form, said guide provided with a recess forming in conjunction with said opposite said gate opening whereby com-- municat'ion between said gateand mold-form is established.

6. In means for pouring metal into coremolds, the combination with a mold having an upwardly extending mold-form and a gate above the latter a core in said moldform, a guide carried by said core between said mold-form and gate and partially covering the upper end of said mold-form,- said guide being provided with a cut-out portion in communication with said mold-form and gate, the rotation of said guide being adapted to restrict said gate opening.

7. In means for pouring metal into coremolds, the combination w1th a mold having an upright mold-form and a gate in lateral communication therewith, a core positioned in said mold-form and extending upwardly across said gate, and partition means interposed between said mold and core, and adapted to be moved to either side of said gate. I

8. In means for pouring metal into coremolds, the combination with a mold having an upright mold-form and a ate in lateral communication therewith, and a core positioned in said mold-form and extending upwardly beyond the horizontal plane of said gate, and an adjustable partition member resting against said core'laterally of said gate for the useful purpose specified.

for pouring metal into core- 9. In means molds, the combination an upright mold-form and a gate in lateral communication therewith, a core positioned in said mold-form and extending upwardly with a mold having beyond the horizontal plane of said gate, and a guide carried by said core and movable with respect to said gate, said guide having partition members interposed between said core and mold laterally adjacent the sides of said gate respectively.

10. In means for pouring metal into coremolds, the combination of a mold provided with a mold-form, a core positioned in the latter, said mold furthermore provided with a gate communicating with said mold-form laterally of said core, and a partition'supported between said mold and core adjacent opposite sides of said gate and adapted to constrict such communication.

11. In means for pouring metal into coremolds, the combination of a mold provided with a mold-form, a core positioned in the latter, said mold furthermore provided with a gate communicating with said mold-form,

a guide supported adjacent said core and below the junction of said gate and moldform, and means for moving said guide :tiilong said core for the useful purpose speci- 12. In means for pouring metal into coremolds, the combination of a mold provided with a mold-form, a sprue and a gate connecting the bottom of said sprue with the top of said mold-form, a core opposite said gate outlet, and a partition member interposed between said mold and core and extending downwardly from said gate for the useful purpose specified.

13. In means for pouring metal into coremolds, the combination of a mold provided with a mold-form, a core positioned in the latter, said mold furthermore provided with a gate communicating with said mold-form, and a guide supported between said mold and core laterally adjacent the point at which the inflowing metal impinges against the core for the useful purpose specified.

Signed by me, this 7th day of October, 1913.

FRANK E. CUDELL.

Attested by:

BERNIonR. FRnnsoN, C. I FRANKE. 

